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ChemicalBook CAS DataBase List (2-AMINOTHIAZOL-4-YL)METHANOL

(2-AMINOTHIAZOL-4-YL)METHANOL synthesis

4synthesis methods
-

Yield:51307-43-8 80%

Reaction Conditions:

in ethanol for 1.5 h;Heating / reflux;

Steps:

10; 11; 12
1-Bromo-3-hydroxypropan-2-one (60 g, 392 mmol) and thiourea (34 g, 451 mmol) were charged into a 1 L round bottom flask containing 400 mL of EtOH. The resulting mixture was heated to reflux for 90 minutes. The reaction mixture was then cooled and concentrated under reduced pressure, and a precipitate formed. The product was obtained as a solid (40 g, yield=80%) after filtration and washing three times with hexane. The product was used directly in the next step without further purification. LCMS (API-ES) m/z (%) 131.2 (100%, M++H).

References:

AMGEN INC. US2007/173506, 2007, A1 Location in patent:Page/Page column 34

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